Carpet-cleaning machine.



' WZtIKEQ'JGKL No. 821,764. PATENTBD MAY 29, 1906.

H. W. STRASSHOEFER. CARPET CLEANING MACHINE.

APPLICATION FILED FEB.11, 1904. RENEWED NOV. 1, 1905.

2 SHEETS-SHEET 1.

" No. 821,764 I v y '7 'PATENTE-D MAY 29, 1906.

H. W. STRASSHOEFER.

CARPET CLEANING MACHINE.

APPLIOATIONYFILED FEB. 11. 1904. RENEWED 1101.4; 1905.

2 SHEETS-SEEM 2.

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are. 821,964.

To all whjom it may concern Be it known that I, HENRY W. SrRAss edeiipecially for scrubbing carpets with cleanupon a shaft a, which able,and to that end their It consists in the combination of a movablesurface 'onivhich thecarpet is spread face outward with revolvingbrushes and means for keeping said brushes charged. with cleaning'fliiidj I It also consists in numerous details of construction and inthe more specific combinations of parts, as will be hereinafter setforth. more particularly in the claims.

In the drawings, Figure 1 is a sectional elevation of a machineembodying the invention, and Fig. 2 is a front view of the same.

A represents a large drum or cylinder of any suitable construction. Itshould be as light as possible consistently with the necessary strengthand rigidity, and it is secured is freely rotatable in suitable bearingsin each end member of the frame C, and it may be turned at the desiredslow rate by power applied to a sprocketwheel a3, secured to said shaft.Numerous short points a project out from the surface of the cylinder,and these help to hold the carpet against the movement independent ofthe cylinder.

B B represent shafts which are parallel with the axis of the cylinderand lie on opposite sides thereof. Secured to these shafts are rollersb, which extend the entire length of the cylinder, as indicated in Fig.2. Since carpets are of various thickness and since it is desirable tohold the carpets snugly against the cylinder, these rollers should beadjustshafts are mounted in the lower ends of arms which swing fromoverhead supports, and springs 11 are em 10 ed to swing said arms so asto yieldaw the rollers toward said cylinder.

The'carp'et is additionally held upon the Specification of LettersPatent. Application filed February 11.19%. Renewed November 1, 1906.Serial No. 286.368.

. sprocket-wheels or ciatedpan is raised to STATES PATENT @Flhllillhl.sraassnosrsa, or. CLEVELAND, omo, oaaee'r creawiae lemonade.

i-atentea May 29, 1906.

cylinder by the endless bands or cords or wires F, which ass under thecylinder, over the rollers I), and

grooved rollers shafts H H E E E represent three rotating brushes, theshafts of which are mounted in suitable bearings. Attached to theseshafts are pulleys by which they may be driven. These brushes are so'placed that they brush against the surface of the car, pet on thecylinder. There may be, of course, as few or as many of these brushes asone desires. Associated with said brushes are pans G for containing thecleaning fluid. In each pan is a rotatable corrugated feed-roller I,whose axis is parallel with the axis of the brush uid and h h, securedto rotatable contacts With the associated brush.

The friction of the brush upon these rollers.

will generally be sufiicient to turn these feedrollers fast enough;butif not the rollers may be turned by any suitable mechanism. Thesepans G are provided with hinged covers g, which when 0 en serve asguards to catch and return to the pan that cleaning fluid which isthrown off from the brushes by the action of centrifugal force. Thecleaning fluid in these pans may be benzin or gasolene or some othervolatile fluid. When the machine is not in use, it is desirable thatthese pans containing volatile fluid shall be closed to minimize theloss by evaporation. To permit this, the pans are vertically movable,this result being attained in the construction shown by attaching saidpans to blocks J, which project into vertical grooves in the framemembers. The means shown for moving these blocks u or' down consist oftoggles K, the links of W ich are pivoted at their ends to said blocksbelow them.

When the toggle is straightened, the assothe desired elevation to ermitthe contained rollers to codpeljate wit the brushes. When the toggles{are bent, the pans are lowered and the covers may I then be closed. Thetoggles may be bent and straightened b the longitudinal shifting of twobars M, which are connected with the joints of the toggles and which aretogether by a cross-bar M.

The carpet having been machine in the manner 5 slowly along in thedirection the turning of cylinder A, and it is thoroughly own is drawnthen down under two sets of and to fixed pivots lpassed-into the of thearrow by and which dips into the contained liqconnected fro scrubbed bythe actitner the brushes I0 steamin the carpet, and in orderthat thisand the cleaning fluid with which they are charged. .After this has beenaccomplished and the'cleaning fiuidlhas dried out it is de- 5 sirabletobrush up the ile','which.will be more or; less matted. 0 accomplishthis, I

means for yieldingly pressingsaid rollers tohing-brushes,

said brushes.

. the carpet is again run through the machine, 4: The combination of arotatable cylinder bly which the brushes,then dry',will brush up underwhich the carpet maypass, rollers on t pile. This renovation. isassisted by opposite sides of the cylinderover which the carpet maypass, means for holdingthe caret between said rollers a may be one mosteflici'ently that isto say,

of the, cylinder, a lura thoroughly and at the I roper tin1e-'steampipes P are arran ed be ow, but close to, the drum, and they haveperforations in their 1 5 tops through which steam-jets are dischargedagainst the carpet. I

Havingdescribed myinvention, I claim 1. The combination of arotatablecylinder, rollers on either side thereof over whichthe 2 car etimaypass, a plurality of endless bands or t e'like assing' over said rollersand under said cylinc er,

ity of rotatable carpet, ertically-movable ans for 'cjontaim ing cleaninand means or raising and lowering said pans.

under which the carpet may pass, rollers on opposite sides of thecylinder over which the carpet-may pass, means for-holding that art ofthe carpet which is between said r0 lers against the surface of thecylinder, a plurality O and otherguide-i ollers under rotatable brushescontacting/with the surwhich said bands'also pass with a plurality ofrotatable brushes located below-said cylinder,

5 gndameans for charging them with cleaning in I ' 2. The combination ofarotatabl'e cylinder,

- rollers'on. either side thereof over which the carpet may pass', aplurality of rotatable 3o brushes located. below said 0 linder, andmeans for charging them with cleaning fluid.

, 3. The combination of a rotatable cylinderv 7 under which thecarpetm'ay pass, rotatable rollers, lying on oppositesides of'saidcylinl for containin cleaning flui said'pans, an means-for raising andlowerin (thereto;

In testimony signature in the presence of 'two witnesses. HEN RY W;-STRASSHOEFE-R.

4 Witnesses: I

ALBERT H. BATES, E. L. Tnnesron.

brushes-contacting with the surface of;v said whereof I hereunto atlixmy.

,der, and over which .the carpet may pass, 3 5 ward saidicylinder, andaplurality of scrub- I Y which engage with the carpet upon thecylinderand means for operating 4 ainst the'surface' 45 fluid, feed-r01 ers insaid'pans,

' '5. The combinationof a rotatable cylinder face of said carpet,verticall movabl'e'pans (i: feed-rollers insaid pans, and a cover'ioreach pan hinger

